Monday 6 April 2009

Who shares your birthday?

'I don't know anyone with the same birthday as me'. Well what are the chances of that. I wrote a blog called do you share a birthday, which showed how easy it is to find two people with the same birthday in a group of thirty people. In fact my advice was to bet on it even though 'mathematicians are not gamblers is another title of one of my blogs.

The chances of sharing your birthday with someone else are easier to work out and in a non-leap year there is one chance in three hundred and sixty five. Did you know that this is called a 'common' year? It would take a long time to ask people their birthdays and then find someone with your birthday.

That sums it up.

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